Brutal protagonist is cruel & full of love towards his love interest ^_^

All recommendations are greatly appreciated ヾ(╹◡╹๑) I'm looking for stories, which covers all these points ^^:1) intense profound romantic story, better not to be a comedy2) one of the main characters is brutal, towards his love interest as well (deliquent, yakuza, powerful, sadist etc.) *oh my, so perverted, really, can't believe myself *3) still, his love towards his love interest is one of the main themes4) it would be great if this cruel person won't be a petty cheating drunkard, but a strong character

________________All choices are made in fear,What you fear more is the only difference.Positive decisions are made in fear negative consequences,Negitive decisions are made in fear of positive decisions not giving the outcome you want.Embarrassment is the fear of people knowing your real thoughts.Greed is the fear of having too little.